Abstract
The yield of gaseous impuritis in acetylene generated by a "water to carbide" generator is affected by the temperature of water used. The results of the experiment are as follows;
(1) yield of acetylene decreases sharply at a water temperature of 50°C;
(2) yield of hydrogen phosphide is almost independent of temperature;
(3) yield of hydrogen sulphide has a maximum point at about 30°C because of less solubility of SH2 in warm water and the formation or Ca(SH)2 (highly soluble in water) from CaS at higher temperatures.
But the temperature of water in an acetylene generator should be held as low as possible in practice. In fhis analysis hydrogen sulphide was measured as BaSO4 and hydrogen phosphide as Mg2P2O7.
